[Resolver unit for recovery of 12 conventional leads from 3 corrected orthogonal leads]

The progress in automatic ECG analysis raised the task to reduce the number of parameters or ECG-leads. Three corrected orthogonal ECG-leads are important. They are unusual for clinicists and lack the verified criteria for diagnosis with their help. The resolver unit proposed is designed to transform the three orthogonal leads into 12 conventional ones. The resolver allows only 3 leads to be recorded, transferred through communication lines and introduced into computer, while, when necessary, one can anlyse data from all 12 conventional leads, and give a conclusion in a form usual for clinicists. This cuts time and costs. The resolver presents also a theoretical interest--as it permits studying the non-dipole components of cardiac vector.